Mitsubishi Electric MELSEC iQ-R Series - Page 275

20 DATA LOGGING FUNCTION
20.6 Data Logging File
273
20
<Data row>
The collected data value is displayed. All the data items collected during a single collection is displayed in a single row.
*4 When single-precision real number or double-precision real number is specified, if the numerical value to be output does not fall into the
range -2147483648.0 to 4294967295.0, it is displayed in an equivalent format to "exponential format and the number of decimal part
digits is nine".
Ex.
The size of the data type information row is determined by the following equation when data logging of 128 points of data from
D100 to D227 (unsigned word type, decimal format) is performed (The following sections in the "Output" window are set to be
output: "Date" (the output format is YYYY/MM/DD hh:mm:ss.sss), "Data sampling interval", "Execution step No.", "Execution
program name or execution program No.", and "Index").
46(date column) + 24(data collection interval column) + 12(execution step No. column) + 6(execution program number
column) + 200(execution program name column) + 20(index column) + (12  128)(data column) + 264(the number of tabs) +
4(CR + LF)
= 2112 bytes
Item Description Size
Date column Information is output according to the data row output character string specified in the format. 2 to 64 bytes
Data collection interval
column
The time interval from the previous collection time to the current collection time is output. If the
maximum display range is exceeded, the count returns to 1 and starts again to output a new
time interval
(unit: s, display range: 1 to 100000000000).
2 to 24 bytes
Execution step No.
column
The step No. executed on the engineering tool at the time interval and timing in which data
was collected is output. With the collection condition "Each scanning cycle" specified, the
resulting output is the step No. at the time of execution of END instruction in the last executed
program in the scan. With the collection condition "Interrupt occurrence" specified, the
resulting output is the step No. at the time of execution of IRET instruction in the interrupt
program. If the system operation (such as system interrupt) is running during collection interval
and collection timing or the FB program is in running, "0" is output.
2 to 12 bytes
Execution program
number column
The program No. executed on the engineering tool at the time interval and timing in which data
was collected is output. With the collection condition "Each scanning cycle" specified, the
resulting output is the program number of the last executed program in the scan. If two or more
system operations, such as collection timing and system interrupt, occur simultaneously,  is
output.
2 to 6 bytes
Execution program
name column
The program name (no extension) executed on the engineering tool at the time interval and
timing in which data was collected is output. With the collection condition "Each scanning
cycle" specified, the resulting output is the program name of the last executed program in the
scan. If a program name with the same program number has already been in the file, a null
value is output. If two or more system operations, such as collection timing and system
interrupt, occur simultaneously, "* SYSTEM" is output.
0 to 200 bytes
Index column A value which increments in ascending order from 1 is output. When it exceeds the upper limit,
it returns to 1 and increments again (range: 1 to 4294967295).
2 to 20 bytes
Data column When bits are specified: bit On = 1 and bit Off = 0 are output. 2 bytes
When unsigned/signed word type is specified: data value is output according to the specified
output type.
• Decimal format: 2 to 22 bytes
• Hexadecimal format: 2 to 16
bytes
• Decimal fraction format: 2 to 42
bytes
• Exponential format: 10 to 42
bytes
When unsigned/signed double word type, single-precision real number, or double-precision
real number is specified: data value is output according to the specified output type.
• Decimal format: 2 to 22 bytes
*4
• Hexadecimal format: 2 to 16
bytes
• Decimal fraction format: 2 to 52
bytes
• Exponential format: 10 to 44
bytes
When character string is specified: the specified character string is output. 2 to 256 bytes
When numeric string is specified: the character string which represented by the hexadecimal
in increments of a byte is output without clearance.
4 to 1024 bytes
When time is specified: T#-24d20h31m23s648ms to T#24d20h31m23s647ms is displayed. 26 to 40 bytes
Trigger occurrence
information column
The specified character string is output when the trigger occurs. In other cases, no character
string is output.
0 to 512 bytes